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作者:ah, 2007-10-31
9
using System;
10using System.Drawing;
11using System.Collections;
12using System.Windows.Forms;
13using System.Data;
14using OpenNETCF.Multimedia.Audio;
15using System.IO;
16using System.Reflection;
17
18namespace ppcvoicerecorder
19
{
20
public partial class frmRecorder : Form
21
{
22 private Player player;
23 private Recorder recorder;
24 private Stream stream;
25 private int timeLeft;
26
27 private const int RECORD_LENGTH = 600;
28 private const int MAX_RECORD_LENGTH = 600;//录音最大长度
29 private string TEMP_PATH = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
30 private string TEMP_FILE = SystemInfoFilePath();
31 private DateTime STARTRECORD_TIME;//开始录音时间
32 private DateTime ENDRECORE_TIME;//结实录音时间
33 ConnDate conn = new ConnDate();
34
35 public frmRecorder()
36 {
37 InitializeComponent();
38
39 lblTime.Width = this.Width;
40 // 实例化录音机
41 recorder = new Recorder();
42 recorder.DoneRecording += new WaveFinishedHandler(recorder_DoneRecording);
43 // 实例化播放器
44 player = new Player();
45 player.DonePlaying += new WaveDoneHandler(player_DonePlaying);
46
}
47
48
49 void recorder_DoneRecording()
50 {
51 mniRecord.Text = "录音";
52 tmrRecord.Enabled = false;
53
54 }
55
56
设置本地存储路径
68
69 private DialogResult _isCancel = DialogResult.No;
70
71 public DialogResult IsCancel
72 {
73 get { return _isCancel; }
74 }
75
76 void player_DonePlaying(object sender, IntPtr wParam, IntPtr lParam)
77 {
78 // mniPlay.Text = "播放";
79 }
80
81 private void tmrRecord_Tick(object sender, EventArgs e)
82 {
83 timeLeft--;
84 if (timeLeft >0)
85 {
86 lblTime.Text = string.Format("0:{0:00}", MAX_RECORD_LENGTH - timeLeft);
87 }
88 }
89
90 private Stream PrepareTempFile()
91 {
92 // 检查临时目录是否存在
93 if (!Directory.Exists(TEMP_PATH))
94 {
95 Directory.CreateDirectory(TEMP_PATH);
96 }
97
98 if (File.Exists(TEMP_FILE))
99 {
100 File.Delete(TEMP_FILE);
101 }
102
103 stream = File.OpenWrite(TEMP_FILE);
104 return stream;
105 }
106
107 private void Record()
108 {
109 try
110 {
111 if (mniRecord.Text == "停止/确认")
112 {
113 tmrRecord.Enabled = false;
114 // 停止录音
115 this.ENDRECORE_TIME = DateTime.Now;
116 this.lblTime.Text = conn.DateDiff(this.STARTRECORD_TIME,this.ENDRECORE_TIME);
117 recorder.Stop();
118 _isCancel = DialogResult.OK;
119 mniRecord.Text = "录音";
120 this.Close();
121 }
122 else
123 {
124 this.STARTRECORD_TIME = DateTime.Now;
125 stream = PrepareTempFile();
126 timeLeft = RECORD_LENGTH;
127 tmrRecord.Enabled = true;
128
129 // 开始录音
130 recorder.RecordFor(stream, RECORD_LENGTH, SoundFormats.Mono8bit11kHz);
131 mniRecord.Text = "停止/确认";
132 }
133 }
134 catch (Exception ex)
135 {
136 MessageBox.Show(ex.Message);
137 }
138 }
139
140 /// <summary>
141 /// 取得录音文件路径
142 /// </summary>
143 /// <returns>返回路径</returns>
144 public string GetFileInfo()
145 {
146 try
147 {
148 return this.TEMP_FILE;
149 }
150 catch (Exception err)
151 {
152 return string.Empty;
153 MessageBox.Show(err.Message);
154 }
155 }
156
157 private void mniRecord_Click(object sender, EventArgs e)
158 {
159 this.Record();
160 }
161
162 private void mniMenuBack_Click(object sender, EventArgs e)
163 {
164 this.Close();
165 }
166
167 }
168
}
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